Carinia had some stickers. 2/3 of them were dinosaur stickers and the rest were flower stickers. She divided the dinosaur stickers equally among some boys such that each boy received 1/10 of the stickers. She divided the flower stickers equally among some girls such that each girl received 1/5 of the stickers.
(a) How many boys were there?
(b) How many girls were there?